Description

2-(4-Dimethylaminophenyl)Diazenylbenzenesulfonic Acid is a specialized diazo compound characterized by its sulfonic acid functionality and a dimethylamino-substituted aromatic system. This molecular structure makes it a valuable intermediate for synthesizing dyes, pigments, and functional materials where precise color properties and solubility are critical. It is primarily utilized by manufacturers in the fine chemical, advanced material, and research sectors requiring high-purity functional intermediates.

Application

• Key intermediate in the synthesis of azo dyes and pigments for textiles, inks, and coatings.
• Precursor for functional colorants used in liquid crystal displays (LCDs) and other electronic applications.
• Building block in organic synthesis for pharmaceuticals and agrochemical research.
• Used in the development of light-sensitive materials and photoresist components.
• Intermediate for analytical reagents and chemical sensors.
• Research and development of novel polymeric dyes and advanced organic materials.

Basic Information

Product Name	2-(4-Dimethylaminophenyl)Diazenylbenzenesulfonic Acid
CAS No.	125165-73-3
Molecular Formula	C14H15N3O3S
Molecular Weight	305.35 g/mol
Synonyms	4-[(4-Dimethylaminophenyl)diazenyl]benzenesulfonic Acid; 2-(4-Dimethylaminophenyl)diazenylbenzenesulfonic Acid; Benzenesulfonic acid, 4-[(4-(dimethylamino)phenyl)azo]-; p-(p-Dimethylaminoazobenzene)sulfonic Acid; Dabsyl Acid Precursor; DABS Acid; Azo Dye Intermediate 125165-73-3
EINECS	Contact for details

Quality Control

Our 2-(4-Dimethylaminophenyl)Diazenylbenzenesulfonic Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to red-brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.